Verily, verily, I say unto you, He that believes on me has everlasting life.
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Augustine of Hippo
AD 430
Our Lord wishes to reveal what He is; Verily, verily, I say to you, He that believes in Me, has everlasting life. As if He said; He that believes in Me has Me: but what is it to have Me? It is to have eternal life: for the Word which was in the beginning with God is life eternal, and the life was the light of men. Life underwent death, that life might kill death.
And because they had taunted Him with the manna, He adds, Your fathers did eat manna in the wilderness, and are dead. Your fathers they are, for you are like them; murmuring sons of murmuring fathers. For in nothing did that people offend God more, than by their murmurs against Him. And therefore are they dead, because what they saw they believed, what they did not see they believed not, nor understood.
This was the bread the manna typified, this was the bread the altar typified. Both the one and the other were sacraments, differing in symbol, alike in the thing signified. Hear the Apostle, They did all eat the same spiritual meat.
But are we, who eat the bread that comes down from heaven, relieved from death? From visible and carnal death, the death of the body, we are not: we shall die, even as they died. But from spiritual death which their fathers suffered, we are delivered. Moses and many, acceptable of God, eat the manna, and died not, because they understood that visible food in a spiritual sense, spiritually tasted it, and were spiritually filled with it. And we too at this day receive the visible food; but the Sacrament is one thing, the virtue of the Sacrament another. Many a one receives from the Altar, and perishes in receiving; eating and drinking his own damnation, as said the Apostle. To eat then the heavenly bread spiritually, is to bring to the Altar an innocent mind. Sins, though they be daily, are not deadly. Before you go to the Altar, attend to the prayer you repeat: Forgive us our debts, as we forgive our debtors. If you forgive, you are forgiven: approach confidently; it is bread, not poison. None then that eat of this bread, shall die. Butwe speak of the virtue of the Sacrament, not the visible Sacrament itself; of the inward, not of the outward eater.
The manna too camedown from heaven; but the manna was shadow, this is substance.